/*
 * Copyright 2002-2010 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package qunar.tc.bistoury.instrument.client.spring.el;

/**
 * Thrown when a suitable converter could not be found in a conversion service.
 *
 * @author Keith Donald
 * @since 3.0
 */
@SuppressWarnings("serial")
final class ConverterNotFoundException extends ConversionException {

    private final TypeDescriptor sourceType;

    private final TypeDescriptor targetType;


    /**
     * Creates a new conversion executor not found exception.
     *
     * @param sourceType the source type requested to convert from
     * @param targetType the target type requested to convert to
     */
    public ConverterNotFoundException(TypeDescriptor sourceType, TypeDescriptor targetType) {
        super("No converter found capable of converting from type " + sourceType + " to type " + targetType);
        this.sourceType = sourceType;
        this.targetType = targetType;
    }


    /**
     * Returns the source type that was requested to convert from.
     */
    public TypeDescriptor getSourceType() {
        return this.sourceType;
    }

    /**
     * Returns the target type that was requested to convert to.
     */
    public TypeDescriptor getTargetType() {
        return this.targetType;
    }

}
